When the inventor (surnamed, it seems, Cheyko) summoned by you from Kharkov arrives, it is necessary to demand from him a precise formal written opinion on all the points indicated in the newspaper *Pravda*, and this opinion should be 1) from Lazarev or another major scholar in Moscow or Petersburg, 2) from Bonch-Bruevich and other specialists of the Nizhny Novgorod radio laboratory.124

Lenin

Dictated by telephone

December 7, 1921

copies

First published in 1933

in Lenin Miscellany XXIII

Printed from a typescript